MATLAB: What is siftwin 32

siftwin32

i need to know why we using siftwin32 in sift algorithm pls help me

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I'm guessing that you are referring to David Lowe's SIFT keypoint detector.

siftwin32.exe is the Windows executable and they call that with a system command. I'm sure they could have written it all in MATLAB, but they decided to do it that way. Perhaps they just provided the MATLAB wrapper as an afterthought. Or maybe MATLAB provides the best environment to call the executable from. Those things you will have to ask the author.

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MATLAB: 32bits save as int32

If you look at imfinfo() of the file, you can see that the headers say it is a collection of nine images with 32 bit signed integer. If it is intended to be single instead, then the metadata is wrong.

for IDX = 1 : 9
    imgint32 = imread('lh.average.CURVATURE.tif','index',IDX);
    imgsingle{IDX} = reshape(typecast(imgint32(:), 'single'), size(img32));
end

MATLAB: RUNTIME WIN32 OR 64

Send the 32 bit one. MS Windows win64 can execute 32 bit executables.

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MATLAB: 32bits save as int32

MATLAB: RUNTIME WIN32 OR 64

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